Paul O'Brien (born 14 April 1978) is a South African-Australian actor, known for his role as Jack Holden in the television soap opera Home and Away, for which he won the Logie Award for Most Popular New Male Talent in 2006.

[10] After leaving the serial, O'Brien joined the cast of Underbelly Files: Tell Them Lucifer was Here as murdered police officer Rodney Miller.

Robert Mond), short films Peacekeeper and Without A Shirt, before appearing in Project Eden: Vol I as Agent Williams.

That same year, he starred in the Indonesia set film Message Man as a ruthless hitman who comes out of retirement to avenge a poor Indonesian family who are being terrorized by modern-day child slavers.

In March 2023, O'Brien began shooting the Australian feature film The Gorge in Queensland, alongside fellow Home and Away actor Lincoln Lewis.

Based in South Yarra, Victoria, O'Brien has helped many of his students get agents, get auditions and book roles.